curl --request PUT \
  --url https://api-0{X}.moengage.com/v1.0/opt-in-management/user-preferences \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: <content-type>' \
  --header 'MOE-APPKEY: <moe-appkey>' \
  --data '
{
  "user_preferences": {
    "customer_id": "ID_uid",
    "email_id": "john@example.com",
    "categories": {
      "category_1": true,
      "category_2": false
    },
    "opt_in_status": "DOUBLE_OPTED_IN",
    "channel": "email"
  }
}
'

import requests

url = "https://api-0{X}.moengage.com/v1.0/opt-in-management/user-preferences"

payload = { "user_preferences": {
        "customer_id": "ID_uid",
        "email_id": "john@example.com",
        "categories": {
            "category_1": True,
            "category_2": False
        },
        "opt_in_status": "DOUBLE_OPTED_IN",
        "channel": "email"
    } }
headers = {
    "MOE-APPKEY": "<moe-appkey>",
    "Content-Type": "<content-type>",
    "Authorization": "Basic <encoded-value>"
}

response = requests.put(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PUT',
  headers: {
    'MOE-APPKEY': '<moe-appkey>',
    'Content-Type': '<content-type>',
    Authorization: 'Basic <encoded-value>'
  },
  body: JSON.stringify({
    user_preferences: {
      customer_id: 'ID_uid',
      email_id: 'john@example.com',
      categories: {category_1: true, category_2: false},
      opt_in_status: 'DOUBLE_OPTED_IN',
      channel: 'email'
    }
  })
};

fetch('https://api-0{X}.moengage.com/v1.0/opt-in-management/user-preferences', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api-0{X}.moengage.com/v1.0/opt-in-management/user-preferences",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'user_preferences' => [
        'customer_id' => 'ID_uid',
        'email_id' => 'john@example.com',
        'categories' => [
                'category_1' => true,
                'category_2' => false
        ],
        'opt_in_status' => 'DOUBLE_OPTED_IN',
        'channel' => 'email'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Basic <encoded-value>",
    "Content-Type: <content-type>",
    "MOE-APPKEY: <moe-appkey>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api-0{X}.moengage.com/v1.0/opt-in-management/user-preferences"

	payload := strings.NewReader("{\n  \"user_preferences\": {\n    \"customer_id\": \"ID_uid\",\n    \"email_id\": \"john@example.com\",\n    \"categories\": {\n      \"category_1\": true,\n      \"category_2\": false\n    },\n    \"opt_in_status\": \"DOUBLE_OPTED_IN\",\n    \"channel\": \"email\"\n  }\n}")

	req, _ := http.NewRequest("PUT", url, payload)

	req.Header.Add("MOE-APPKEY", "<moe-appkey>")
	req.Header.Add("Content-Type", "<content-type>")
	req.Header.Add("Authorization", "Basic <encoded-value>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.put("https://api-0{X}.moengage.com/v1.0/opt-in-management/user-preferences")
  .header("MOE-APPKEY", "<moe-appkey>")
  .header("Content-Type", "<content-type>")
  .header("Authorization", "Basic <encoded-value>")
  .body("{\n  \"user_preferences\": {\n    \"customer_id\": \"ID_uid\",\n    \"email_id\": \"john@example.com\",\n    \"categories\": {\n      \"category_1\": true,\n      \"category_2\": false\n    },\n    \"opt_in_status\": \"DOUBLE_OPTED_IN\",\n    \"channel\": \"email\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api-0{X}.moengage.com/v1.0/opt-in-management/user-preferences")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Put.new(url)
request["MOE-APPKEY"] = '<moe-appkey>'
request["Content-Type"] = '<content-type>'
request["Authorization"] = 'Basic <encoded-value>'
request.body = "{\n  \"user_preferences\": {\n    \"customer_id\": \"ID_uid\",\n    \"email_id\": \"john@example.com\",\n    \"categories\": {\n      \"category_1\": true,\n      \"category_2\": false\n    },\n    \"opt_in_status\": \"DOUBLE_OPTED_IN\",\n    \"channel\": \"email\"\n  }\n}"

response = http.request(request)
puts response.read_body